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Finding the Fourth Proportional to 5,648.03, 7,793.51 and 3,129.53

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Solution

The fourth proportional to 5,648.03, 7,793.51 and 3,129.53 is: 4,318.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648.03 : 7,793.51 = 3,129.53 : x
  2. Step 2: Convert to fraction form
    5,648.03/7,793.51 = 3,129.53/x
  3. Step 3: Cross multiply
    5,648.03x = 7,793.51 × 3,129.53
  4. Step 4: Simplify right side
    5,648.03x = 24,389,968.74
  5. Step 5: Solve for x
    x = 24,389,968.74/5,648.03
  6. Step 6: Final answer
    x = 4,318.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.